| Pressmark | Evan.284 |
| Heading or Venue | Her Majesty's Theatre |
| Place | London, Westminster |
| Title | The Black Boom. Haverly's Genuine Colored Minstrels. The black boom. Her Majesty's Theatre. Every evening at 8. Wednesdays and Saturdays at 2 & 8 |
| Size | 78 x 103 cm. |
| Date | [1878?] |
| Notes | Her Majesty's Theatre is a former name of His Majesty's Theatre |
| Genre | Poster |
| Subject | Musicals; Minstrel music |
| Names | Haverly, Jack, 1837-1901; Haverly's Genuine Colored Minstrels |